Pith Number

pith:UNLNPRSY

pith:2015:UNLNPRSY52QK2N6RU76HTH7JBJ

not attested not anchored not stored refs pending

Heron Quadrilaterals via elliptic curves

Dustin Moody, Farzali Izadi, Foad Khoshnam

arxiv:1512.03913 v1 · 2015-12-12 · math.NT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNLNPRSY52QK2N6RU76HTH7JBJ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:24:23.625850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a356d7c658eea0ad37d1a7fc799fe90a69c3143c6d8f081812353cffe05db777

Aliases

arxiv: 1512.03913 · arxiv_version: 1512.03913v1 · doi: 10.48550/arxiv.1512.03913 · pith_short_12: UNLNPRSY52QK · pith_short_16: UNLNPRSY52QK2N6R · pith_short_8: UNLNPRSY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UNLNPRSY52QK2N6RU76HTH7JBJ \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a356d7c658eea0ad37d1a7fc799fe90a69c3143c6d8f081812353cffe05db777

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52db61567940e5569d146e09d308f904ab7a36296fc09aee0509b32d29f7b04e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-12-12T13:49:12Z",
    "title_canon_sha256": "0e03294e21c6a6cf63338a94a1ffbaa2ef2405ae9d383e796df3670c0f130960"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03913",
    "kind": "arxiv",
    "version": 1
  }
}